NPI registry status
Active
2026 NPPES data Optometrist NPI 1922049469 OD
Verify on CMS → Bret Argenbright, OD
Optometrist in Shelby, Montana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 61,426 in Optometrist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
79
Medicare Part D claims · 19 beneficiaries · Optometrist avg: 279
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Bret Argenbright, OD filed 79 Medicare Part D claims in 2024 as an Optometrist in Shelby, Montana, prescribing 82% generic.
- 79
- Part D claims, 2024
- 82%
- generic prescribing
- ≥0th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Bret Argenbright, OD
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1922049469), first enumerated 06/08/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 79 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1922049469 · Optometrist
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1922049469
- ENUM-LEGACY 2006
- TAX-MEGA 61K Optometrist
- RX-TRACE 79
- BOOK-THIN 237 in Montana
- PHOTO-ENUM Tawna Roberts, OD · 2006
Bret Argenbright, OD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
79 ≥ 0th percentile 0% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Bret Argenbright, OD?
Quality data not reportedPrimary specialty
Optometrist
Medicare Part D claims
79 72% vs specialty avg
Specialty distribution in Montana
How Optometrist compares to other specialties among Montana providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Optometrist. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1922049469 |
|---|---|
| Specialty | Optometrist |
| Credentials | OD |
| Gender | Male |
| NPI Issued | 06/08/2006 |
Brand vs generic prescribing mix · Typical
Bret Argenbright, OD - brand share 18.0%
Optometrist average
18% brand-name claims vs 82% generic, on 79 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
79
Total Claims
$1K
Total Drug Cost
19
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 102.633
- Total Day Supply
- 2,502
- Brand vs Generic
- 18% brand / 82% generic
- Brand Drug Cost
- $469
- Generic Drug Cost
- $892
Patient Demographics
- Average Patient Age
- 75.2 years
- Avg HCC Risk Score
- 1.55
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Latanoprost | 15 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Bret Argenbright, OD fits within the Optometrist landscape nationally.
61,426
Optometrist Providers in US
56
States with Optometrist
279
Avg Claims per Provider
Bret Argenbright, OD's 79 claims are below the specialty average of 279.
Nationwide Optometrist peers with similar MIPS or enrollment year
Two federal-record peer sets for Argenbright, both outside Montana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Optometrist Providers in Montana
Other clinicians with the same primary specialty enrolled in Montana, drawn from the same CMS NPPES roster as Argenbright.
One of 237 Optometrist providers enrolled in Montana, 5 are shown here.
Dr. Fred Abraham
OD
Great Falls, MT
Dr. John Anderson
O.D.
Bozeman, MT
Dr. Roger Anderson
OD
Sidney, MT
Dr. Peter Babcock
O.D.
Missoula, MT
Dr. Naomi Barnes
OD
Whitefish, MT
Compare Optometrist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Bret Argenbright, OD's specialty? ▼
Bret Argenbright, OD specializes in Optometrist and practices in Shelby, Montana. Credentials: OD.
How much does Bret Argenbright, OD prescribe under Medicare Part D? ▼
In 2024, Bret Argenbright, OD wrote 79 Medicare Part D claims totaling $1K in drug costs for 19 beneficiaries.
Where is Bret Argenbright, OD located? ▼
Bret Argenbright, OD is located at 1950 W ROOSEVELT HWY, Shelby, MT, 59474. Phone: (406) 434-3100.
What is Bret Argenbright, OD's NPI number? ▼
Bret Argenbright, OD's National Provider Identifier (NPI) is 1922049469, issued on 06/08/2006.
Does Bret Argenbright, OD prescribe more brand-name or generic drugs? ▼
Bret Argenbright, OD's prescribing is 18% brand-name and 82% generic drugs by claim count, with $469 in brand drug costs.
How many Optometrist providers are there in the US? ▼
There are 61,426 Optometrist providers across 56 states in the US. The average Optometrist provider writes 279 Medicare Part D claims per year.
What drugs does Bret Argenbright, OD prescribe most often? ▼
Based on 2024 Medicare Part D data, Bret Argenbright, OD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bret Argenbright, OD accept Medicare? ▼
Bret Argenbright, OD appears in CMS Medicare data with 79 Part D claims and 19 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bret Argenbright, OD's credentials? ▼
Bret Argenbright, OD's NPI is 1922049469 with credentials OD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.